X2: X-men United
Days of Future Past
X-men
X-men: Apocalypse
X-men: First Class
Deadpool
The Wolverine
X-men Origins: Wolverine
X-men: The Last Stand
I give X-men and Apocalypse pretty much the same ranking. They both have things the other doesn't. Ultimately the smarter story and Magneto's motivations in X1 edge out Apocalypse, despite really liking the character moments, powers, teamwork, and lack of Wolverine in Apocalypse.